Sugar-mill.



J. I. BOYER.

SUGAR MILL.

.APPLIoATloN FILED DBG. 27, 191s.

Patented May 26, 1914.

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JESSE I. BOYER, OF READING, PENNSYLVANIA, ASSIGNOR TO READING- IRON COMPANY, OF READING, PENNSYLVANIA, A CORPORATION OF PENNSYL- VANIA.

SUGAR-MILL.

Specification of Letters Patent.

Application led December 27, 1913. Serial No. 808,958.

ToaZZ whom t may concern:

Be it known that I, Jnssn I. BOYER, a

citizen of the United States, residing at,

The invention is fully described in con-V nection with the accompanying drawings and the novel features are specifically pointed out in the claims.

The drawings illustrate my invention as applied to the particular construction oi' sugar' mill shown in my Patent No. 1,044,127, issued Nov. 12, 1912, though 'obviously applicable to other constructions.

Figure 1 is mainly an end the roll housing of a sugar mill embodying my invention, the speciallyforined recess caps and journal-box backing device being shown-in cross section on the line l-l'of Fig. 2. Fig. 2 is cross section on t-he line 2-2 of Fig. 1. Fig. 3 is an outside view of th recess cap. Figs. 4to 8 are detail views.

In the type of sugar mill shown in the drawings 5 indicates the top roll and 6, 6

the lower rolls, 4which have 'their reduced journal ends 8 mounted in end housings 9.

Each housing 9 is formed with outwardlyopening. recesses 21 for the lower rolls and` each of the latter is provided with a journal bearing 2O backed by a wedge block 32 slidable upon the horizontal lower wall 31 of each recess 21. A recess cap 26, secured to the housing 9 by means of lugs 27 and 28 closes the outwardly opening side recess 21, I and an inward extension 25 forms one of the inclined walls for the journal bearing 20. An adjusting screw 30, mounted in the cap 26, controls the sliding wedge block 32.

The construction above briefly discussed is more fully shown and explained in my previous patent referred to. l

My present invention relates to the construction of these recess caps 26. In the old elevation of i construction of these caps the entire strains came upon the lugs 27 and 28 or upon the screw threads of the bolts 30; and when undue strain was broughtto 1bear upon the rlolls, caused by the accidental entry of tools or other hard substances to the mill, there was great danger of breaking the. housing itself, or at least the recess caps. These breaks caused serious delays as the parts are large and unwieldy, and my present invention provides for carrying these strains without endangering the breaking of either' the housing or caps. To this end I provide each of the. recess caps with a passage-way in which is mounted the vadjust-ing screw for the journal-bearing wedge-block, and the screw is retained inthe cap by bolts designed to carry the normal working strains upon the adjusting screw, but bi'eakable before the strains reach the danger point of breakage of either the ,housing or cap.' These bolts are easily and cheaply renewed and cause a large saving of time and money in making' repairs.

As shown in the drawings I form each recess cap 26 with a squared passage-way 70 extending entirely through it, and-with bolt recesses 71 communicating with said pas- Sage-way, these bolt recesses being cored out at the rear to form seats 72 for the T- heads of the retaining bolts 73. Into this squared passage-way is inserted a nut 74, internally screw-threaded to engage the adjusting screw 30. A passage-way cap 75, having bolt holes 76 and a central hole 77 for the screw 30 is strung upon the latter and bolted to the outer face of the recess cap by means of the T-headed bolts 73. The adjusting screw nut 74: bears against this passage-way cap 75, so that any strain upon the adjusting screw 30 is carried by the T- headed bolts 73, and the latter are made of only suiicient strength to sustain all normal strains, but arranged to break when the strains run over the designed normal strain. When such strains do occur and cause the breaking of the bolts they may be easily gotten at and replaced by merely removing .the passage-way cap 75 and nut 74, taking cheaply repairing any break. The withiaatentee nay se, reir..

drawing screw 33 is shown as passing through a central passage-way of the adjacent screw 30.

My device is simple and eiiicient and easilyl .greatly decreases the costs of such repairs.

That I claim is l. In a sugar mill having a housing provided with an outwardly-openingrecess for a lower roll and a journal-box slidable therein; a recess cap secured to said housing and formed with a passage-way, a passage-Way cap securedto the recess cap, a journal-box backingdevice located in said passage-way, and controlling means for said backing device extending through both of said caps.

2. In a sugar mill having a vhousing provided with an outwardly-opening recess for a lower roll and a journal-box slidable therein; a recess cap secured to saidhousing and formed with a passage-way, a passageway cap secured to the recess cap, a journalbox backing device located in said passageway and retained by said passage-way cap, and a retracting screw for said backing device.

3. In a sugar mill having a housing provided with an outwardly-opening recess for a lower roll and a ournal-box slidable therein; a recess cap secured to said housing and formed with a passage-way, a passage-way cap secured to the recess cap, a nut slidable in said passage-way, and a journal-box backing screw in said nut.

4. In a sugar mill having a housing provided with an outwardly-opening recess for a lower roll and a journal-box slidable therein; a recess cap secured to said housing and formed with a passage-Way, a passageway cap secured to the recess cap, a nut slidable in said passage-Way, and a journal-box backing screw in said nut extended through said passage-way cap.

5. In a sugar mill having a housing provided with an outwardly-opening recess for a lower roll and a journal-box slidable therein; a recess cap secured to said housing and formed with a passage-way, a passageway cap secured tothe recess cap, a nut slidable in said passage-way, a journal-box backing screw in said nut extended through said passage-way cap, and a retracting screw extending through said backing screw.

In testimony whereof I aix my signature in presence of two witnesses.

JESSE I. BOYER;

Witnesses:

D. M. STEWART, A. M. KURTZ. 

